JSONstringify:function(Json){
        if($.browser.msie){
           if($.browser.version=="7.0"||$.browser.version=="6.0"){
              var result=toJSONString(Json);
           }else{
              var result=JSON.stringify(Json);  
           }       
        }else{
            var result=JSON.stringify(Json);           
        }
        return result;
    },
    evalJSON : function(strJson) {
        return eval("(" + strJson + ")");
    },
    toJSONString : function(object) {
        var type = typeof object;
        if ('object' == type) {
            if (Array == object.constructor)
                type = 'array';
            else if (RegExp == object.constructor)
                type = 'regexp';
            else
                type = 'object';
        }
        switch (type) {
            case 'undefined' :
            case 'unknown' :
                return;
                break;
            case 'function' :
            case 'boolean' :
            case 'regexp' :
                return object.toString();
                break;
            case 'number' :
                return isFinite(object) ? object.toString() : 'null';
                break;
            case 'string' :
                return '"' + object.replace(/(\\|\")/g, "\\$1").replace(/\n|\r|\t/g, function() {
                            var a = arguments[0];
                            return (a == '\n') ? '\\n' : (a == '\r') ? '\\r' : (a == '\t') ? '\\t' : ""
                        }) + '"';
                break;
            case 'object' :
                if (object === null)
                    return 'null';
                var results = [];
                for (var property in object) {
                    var value = toJSONString(object[property]);
                    if (value !== undefined)
                        results.push(toJSONString(property) + ':' + value);
                }
                return '{' + results.join(',') + '}';
                break;
            case 'array' :
                var results = [];
                for (var i = 0; i < object.length; i++) {
                    var value =  toJSONString(object[i]);
                    if (value !== undefined)
                        results.push(value);
                }
                return '[' + results.join(',') + ']';
                break;
        } 
    }